GB1272699A - Selective monochlorination of biphenyl using clay catalysts - Google Patents

Selective monochlorination of biphenyl using clay catalysts

Info

Publication number
GB1272699A
GB1272699A GB5511870A GB5511870A GB1272699A GB 1272699 A GB1272699 A GB 1272699A GB 5511870 A GB5511870 A GB 5511870A GB 5511870 A GB5511870 A GB 5511870A GB 1272699 A GB1272699 A GB 1272699A
Authority
GB
United Kingdom
Prior art keywords
biphenyl
clay catalysts
monochlorination
selective
nov
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5511870A
Inventor
Francis Matthew Scheidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Publication of GB1272699A publication Critical patent/GB1272699A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/10—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms
    • C07C17/12—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms in the ring of aromatic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)

Abstract

1,272,699. Monochlorobiphenyls. DOW CHEMICAL CO. 19 Nov., 1970 [19 Nov., 1969], No. 55118/70. Heading C2C. A mixture of 2- and 4-chlorobiphenyls is prepared by reacting biphenyl with Cl 2 in presence of a clay catalyst. In examples, the product contains additionally up to 1% 3-chlorobiphenyl and up to 12% higher chlorinated (mainly dichloro-) biphenyls.
GB5511870A 1969-11-19 1970-11-19 Selective monochlorination of biphenyl using clay catalysts Expired GB1272699A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US87818269A 1969-11-19 1969-11-19

Publications (1)

Publication Number Publication Date
GB1272699A true GB1272699A (en) 1972-05-03

Family

ID=25371533

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5511870A Expired GB1272699A (en) 1969-11-19 1970-11-19 Selective monochlorination of biphenyl using clay catalysts

Country Status (6)

Country Link
BE (1) BE759148A (en)
CA (1) CA933949A (en)
DE (1) DE2056441A1 (en)
FR (1) FR2067384B1 (en)
GB (1) GB1272699A (en)
NL (1) NL7016892A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3930848A1 (en) * 1989-09-15 1991-03-28 Bayer Ag METHOD FOR THE PRODUCTION OF OLIGOPHENYLENE DIHALOGENATED IN THE 4,4'-POSITION
DE19922402A1 (en) * 1999-05-14 2000-11-16 Bayer Ag Preparation of pure 4-chlorobiphenyl by reacting biphenyl and chlorine in presence of catalyst then fractionally distilling, useful as intermediate for pharmaceuticals and plant protectants

Also Published As

Publication number Publication date
DE2056441A1 (en) 1971-05-27
CA933949A (en) 1973-09-18
BE759148A (en) 1971-05-19
FR2067384B1 (en) 1974-02-15
NL7016892A (en) 1971-05-24
FR2067384A1 (en) 1971-08-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee